Wheel pump



(No Model.) .2 Sheets Sheet 1 I. T. DYBR.

WHEEL PUMP.

No. 573,580. Patented Dec. 22, 1896.

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W [if (No Model.) 2 Sheets-Sheet 2.

1. T. DYER.

WHEEL PUMP.

No; 573,580. Patented e0. 22, 1896.

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ISAAC T. DYER, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE DYER POWER COMPANY, OF SAME PLACE.

WHEEL-PUMP.

SPECIFICATION forming part of Letters Patent No. 573,580, dated December 22, 1896.

Application filed March 30, 1896. Serial No. 585,389. (No model.)

To all whom it may concern: each with an outlet-opening and inlet-open- Be it known that I, ISAAC T. DYER, a citiing p, the former extending through the hub zen of the United States, residing at Chicago, r and having an enlargement forming a valvein the county of Cook and State of Illinois, chamber 0, containing an inwardly-opening 55 have inventeda new and useful Improvement check-valve 0 and the latter extending out in lVheel-Pumps, of which the following is a through the inner side of the wheel and havspecification. ing an enlargement forming a valve-chamber The object of my invention is to provide a 1), containing an outwardly-opening checknovel construction of wheel-pump for applivalve p 6o 10 cation to a road-vehicle to utilize the motion In each cylinder C is reciprocally confined of the vehicle to generate, through the mea piston C, the preferred construction of dium of the pump, fluid-pressure for use as which is that illustrated, comprisinga convex power; and my invention consists in the conhead 71, having a neck at, which enters a tustruction of the wheel-pump and also in the bular piston-stem n and is confined therein 15 manner of its combination with a road-vehiby a transverse pin '12P, projecting at its opcle, such as a locomotive-engine, a car, or a posite ends into guide-grooves it, provided wagon. opposite each other in the wall of the cylin- Referring to the accompanying drawings, der to limit the stroke of the piston. At its Figure 1 is a view in side elevation of a loinner end the stem 91 is surrounded by suit- 2o comotive-engine equipped with my wheelable packing of, and at its outer end, which pump device, showing the latter applied in is shown to be reduced in cross-section, it two different ways; Fig. 2, a view in side elecontains a plug a, fastened in place by a pin vation, partly broken and sectional, of the n and projecting beyond the end of the stem pump device; Fig. 3, a View, partly broken, n to afford a bearing for a rocking shoe n 2 5 showing one of the wheel-pumps and the holpivotally supported on the plug by a pin n low axle upon one end of which it is carried, and the stem is surrounded by a spiral spring as also the receiver for compressed fluid, in at confined between a shoulder at o in the sectional elevation and 'the other wheelouter end portion of the cylinder C and the pump, at the opposite end of the hollow axle, rocking shoe n 30 in peripheral elevation; Fig. 4, a broken sec- Thehollow axle B contains openings m, regtional view of a modification for adapting the istering with the openings 0 at the hub. wheel-pump to be applied to a wagon; and D is a receiver for the compressed fluid Fig. 5, an enlarged broken section taken at surrounding the axle B, between the wheelthe line 5 on Fig. 1 and viewed in the direcpumps on its opposite ends, and closed at its 5 tion of the arrow, but omittingt'romthe wheelopposite ends by stuffing-boxes s s, the re-' pump the pistons and their operating-belt. ceiver being rigidly supported to permit the A is a wheel formed, preferably, of metal axle, which opens into it through a port .1, to by casting, with a hollow hub or center 1", at rotate inside it. which it is shrunk or otherwise securely fas- Any desired number of outlet-pipes from 0 o tened upon a hollow axle B, one of the wheels the receiver 1) may be provided, two being being shown in Fig. 3 to be provided on each shown at 1; and d in Fig. 3, and each of which end of the axle, though only one of the wheelshould be provided with an outwardly-openpumps need be used, when, particularly in ing check-valve 2' connection with awagon, the application may The operation of my improved wheel-pump 5 5 best be made in accordance with the modifimay be described in connection with a lococation illustrated by Fig. 4 and hereinafter motive-engine E, to which it may be applied described. to cause the pumps at the ends of the axle B In the wheel A are formed in circumferento run on the rails h of the track with a tial series radial chambers C, preferably of sprocket-wheel, one of which is indicated at 1oo- 5o cylindrical form and concavely rounded at g in Fig. 1, on each end of the axle (then their inner ends, at which they are provided properly extended to receive it) and connected by a chain (indicated atg) with a sprocketwheel (indicated at g on the axle of a drivewheel g of the engine. The receiver D may be connected by the pipe 2', which should contain a shut-off valve f, with a storage tank or holder F, supported on the locomotive-tender E and equipped with a safety-valve cl, and the tank may communicate through a pipe 0, containing a shut-oif valve f, with the steamdome E and compressed air may be supplied from the tank to other parts of the train, for ventilating and power purposes, through a pipe 0, equipped with a shut-off valve and leading from the bottom portion of the tank. Thus my improved wheel-pump is adjusted to generate and store compressed air by the motion of the engine, whereby the wheel of each of the pumps is rotated on the rails of the track to cause each piston-rod, as its shoe treads or steps on the rail, to be forced into its cylinder and compress air, which enters it through its port 19, out through its port 0 into the axle B, whence it enters the receiver D, and is thence forced through the pipe 1 into the holder F or through a pipe 7; into the boiler of the engine, or into both the holder and boiler. As each shoe n is turned by the rotation of the wheel from bearing on the track the spring n controlling its piston, throws the latter out to suck in air through the port 1).

Instead of connecting the wheel-pump with the engine in the manner described, one may be journaled on a frame G at each side of the locomotive-boiler to be rotated by a suitable band or chain 1), encircling the circumferential series of shoes and extending down about the axle of a wheel I) of the engine. From the pumps thus placed a pipe i may connect the receiver D with the holder, and if two of the pumps be placed on a single engine, as represented in Fig. 1, a branch pipe f containing a suitable check-valve, may connect the receiver of the pump supported on the frame G with the pipe i. In connection with this last-named wheel-pump I show a tightener for the belt Z), comprising a frame a, transversely embracing the pump and carrying at its opposite ends rollers a, bearing against the belt to insure compressing it against the shoes a to force in the pistons.

\Vhen my wheel-pump is used on a Wagon, the axle B thereof is made hollow with a diaphragm e near its center, (see Fig. 4,) about which the wheel is secured to cause the ports 0 and p in the base of each cylinder 0 to re ister, respectively, with ports 25 and t in the axle at opposite sides of the diaphragm, whereby when in the progress of the wagon the wheel A is turned by contact of the shoes at its periphery with the ground the pistons will be actuated successively in the manner described, the air being sucked into the cylinders 0 through the hollow axle at the ports t and inlets p and being forced through the out lets 0 and ports t out through the axle into a suitable holder. (Not shown.)

IVhile I have especially devised my improved wheel-pump for generating air for use as power, for ventilation, and the like, it may be used for compressing other fluids, including water.

'What I claim as new, and desire to secure by Letters Patent, is p 1. A wheel-pump device comprising,in combination, a wheel A having a circumferential series of chambers 0 provided with valve-controlled inlets and outlets, pistons O in said chambers, each comprising a head n on a hollow stem n reciprocally confined in a chamber and provided with a plug a at its outer end, a shoe n pivotally connected with the plug, and a spring n confined about the stem, and a hollow axle on which the wheel is mounted and provided with inlets registering with the outlets of said chambers, substantially as and for the purpose set forth.

2. A wheel-pump device comprising,in combination, a wheel A having a hollow center, a circumferential series of chambers 0 provided with valve-controlled inlets 13 leading to a side of the wheel and valve-controlled outlets 0 leading through said center, pistons O in said chambers, each comprising a head it fastened in a hollow stem n by a pin 11. projecting at its opposite ends into guidegrooves in the chamber, a plug 12 in the outer end of the stem, a shoe n pivotally connected with the plug and a spring n confined about the stem and a hollow axle on which the wheel is mounted and provided with inlets registering with the outlets of said chambers, substantially as and for the purpose set forth.

3. In combination with a locomotive-engine, a wheel-pump device comprising a wheel A geared to an axle of the locomotive and hating a circumferential series of chambers 0 provided with valve-controlled inlets and outlets and pistons O in said chambers, each comprising a head or on a hollow stem 77. reciprocally confined in a chamber and provided with a plug 71 at its outer end, a shoe n pivotally connected with the plug, and a spring 01. confined about the stem, a hollow axleB on which the wheel is mounted and provided with inlets registering with the outlets of said chambers and an outlet Z, a receiver D surrounding the axle, and one or more valve-controlled outlet-pipes leading from said receiver, substantially as and for the purpose set forth.

' ISAAC T. DYER.

I11 presence of- J. H. LEE, R. T. SPENCER. 

